weight 0.7~0.8 is best.
I created this LoRA as requested.

Please read the description.

outfit1
aatakagi, long hair, sailor collar, red neckerchief, sailor shirt, white shirt, long sleeves, pleated skirt, blue skirt


outfit2
bbtakagi, long hair, low ponytail, collarbone, black shirt, long sleeves, blue pants, jeans

I uploaded a sample image of the outfit as a post.